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Solar activity report

Report of Solar-Geophysical Activity 2024 Jan 22 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Report of Solar and Geophysical Activity

SDF Number 22 Issued at 2200Z on 22 Jan 2024

IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z

Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M2 event observed at 22/1947Z from Region 3559 (N27E11). There are currently 8 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be moderate with a slight chance for an X-class flare on days one, two, and three (23 Jan, 24 Jan, 25 Jan).
IIA. Geophysical Activity Summary 21-2100Z to 22-2100Z
The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 509 km/s at 22/1950Z. Total IMF reached 14 nT at 22/1700Z. The maximum southward component of Bz reached -9 nT at 22/1923Z. Protons greater than 10 MeV at geosynchronous orbit reached a peak level of 7 pfu at 22/1655Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 159 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected to be at quiet to major storm levels on day one (23 Jan), quiet to unsettled levels on day two (24 Jan) and unsettled to active levels on day three (25 Jan). Protons are likely to cross threshold on days one and two (23 Jan, 24 Jan) and have a slight chance of crossing threshold on day three (25 Jan).
III. Event Probabilities 23 Jan to 25 Jan
Class M60%60%60%
Class X10%10%10%
Proton55%55%15%
PCAFgreen
IV. Penticton 10.7 cm Flux
  Observed       22 Jan 196
  Predicted   23 Jan-25 Jan 180/180/175
  90 Day Mean        22 Jan 155

V. Geomagnetic A Indices
  Observed Afr/Ap 21 Jan  005/006
  Estimated     Afr/Ap 22 Jan  013/020
  Predicted    Afr/Ap 23 Jan-25 Jan  024/035-010/010-015/020

VI. Geomagnetic Activity Probabilities 23 Jan to 25 Jan
A. Middle Latitudes
Active40%15%40%
Minor storm35%05%20%
Major-severe storm15%01%05%
B. High Latitudes
Active15%15%10%
Minor storm20%20%30%
Major-severe storm20%20%60%

All times in UTC

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Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Rovaniemi, Sodankylä, Utsjoki
Kirkenes, Tromsø
Murmansk
Kiruna

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